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First, I am a gm service consultant and around 4 i'm having one of my techs start tearing my trailblazer down and installing gm's ls Stage 2 hot cam, valve springs and new valve springs. the specs are 227/239 and with 1.7 rockers
.551 and .551 lift. I also got the new PCM and TCM From vector motorsports, will let ya know how it works when i'm done! I also administer GM Warranty so I'm covered there too, LOL ! :woot:
 

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2003 chevy trailblazer_lt
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nice;)
 
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